Users Guide

2. From the ROUTER BGP mode, enter the ROUTER BGP VRF mode using the vrf vrf-name
command.
Example
OS10(conf-router-bgp-10)# fast-external-fallover
Supported
Releases
10.3.0E or later
graceful-restart
Enables graceful or hitless restart and configures the required parameters for the restart process.
Syntax
graceful-restart role receiver-only
Parameters
● role — Sets the restart role of the local router
● receiver-only — Local router supports graceful restart as a receiver only
Defaults Disabled
Command Mode ROUTER BGP
Usage
Information
When you enable graceful restart on a node, its BGP neighbor acts as a helper by not dropping the
sessions and maintaining the route information so that the traffic is not disturbed. The no version of this
command disables graceful-restart helper mode.
NOTE: To configure these settings for a non-default VRF instance, you must first enter ROUTER-
CONFIG-VRF sub mode using the following commands:
1. Enter the ROUTER BGP mode using the router bgp as-number command.
2. From the ROUTER BGP mode, enter the ROUTER BGP VRF mode using the vrf vrf-name
command.
Example
OS10(conf-router-bgp-10)# graceful-restart role receiver-only
Supported
Releases
10.3.0E or later
ibgp-ecmp-next-hop-self
Configures the ECMP routes to be advertised to an iBGP peer with next-hop-self.
Syntax
[no] ibgp-ecmp-next-hop-self
Parameters None
Default None
Command Mode ROUTER-BGP
Security and
Access
netadmin, sysadmin, and secadmin
Usage
Information
By default, the next-hop is set to next-hop-self while advertising an ECMP route to an iBGP peer. Use
the no version of this command to advertise ECMP routes to iBGP neighbors with the lowest next-hop IP
address. To verify the configuration, use the show ip bgp neighbors command.
This command is applicable for IPv4 unicast and IPv6 unicast address family modes.
Example (Default
VRF)
OS10(config)# router bgp 100
OS10(config-router-bgp-100)# no ibgp-ecmp-next-hop-self
Layer 3 847